<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Db
 * @subpackage Statement
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Ibm.php 23775 2011-03-01 17:25:24Z ralph $
 */

/**
 * @see Zend_Db_Statement_Pdo
 */
require_once 'Zend/Db/Statement/Pdo.php';

/**
 * Proxy class to wrap a PDOStatement object for IBM Databases.
 * Matches the interface of PDOStatement.  All methods simply proxy to the
 * matching method in PDOStatement.  PDOExceptions thrown by PDOStatement
 * are re-thrown as Zend_Db_Statement_Exception.
 *
 * @category   Zend
 * @package    Zend_Db
 * @subpackage Statement
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Db_Statement_Pdo_Ibm extends Zend_Db_Statement_Pdo {
	/**
	 * Returns an array containing all of the result set rows.
	 *
	 * Behaves like parent, but if limit()
	 * is used, the final result removes the extra column
	 * 'zend_db_rownum'
	 *
	 * @param int $style OPTIONAL Fetch mode.
	 * @param int $col   OPTIONAL Column number, if fetch mode is by column.
	 * @return array Collection of rows, each in a format by the fetch mode.
	 * @throws Zend_Db_Statement_Exception
	 */
	public function fetchAll($style = null, $col = null) {
		$data = parent::fetchAll ( $style, $col );
		$results = array ();
		$remove = $this->_adapter->foldCase ( 'ZEND_DB_ROWNUM' );
		
		foreach ( $data as $row ) {
			if (is_array ( $row ) && array_key_exists ( $remove, $row )) {
				unset ( $row [$remove] );
			}
			$results [] = $row;
		}
		return $results;
	}
	
	/**
	 * Binds a parameter to the specified variable name.
	 *
	 * @param mixed $parameter Name the parameter, either integer or string.
	 * @param mixed $variable  Reference to PHP variable containing the value.
	 * @param mixed $type      OPTIONAL Datatype of SQL parameter.
	 * @param mixed $length    OPTIONAL Length of SQL parameter.
	 * @param mixed $options   OPTIONAL Other options.
	 * @return bool
	 * @throws Zend_Db_Statement_Exception
	 */
	public function _bindParam($parameter, &$variable, $type = null, $length = null, $options = null) {
		try {
			if (($type === null) && ($length === null) && ($options === null)) {
				return $this->_stmt->bindParam ( $parameter, $variable );
			} else {
				return $this->_stmt->bindParam ( $parameter, $variable, $type, $length, $options );
			}
		} catch ( PDOException $e ) {
			require_once 'Zend/Db/Statement/Exception.php';
			throw new Zend_Db_Statement_Exception ( $e->getMessage (), $e->getCode (), $e );
		}
	}

}